HCPList Know more before you call. About
A DIFFERENT WAY TO EXPLORE

Similar work.
More providers to explore.

Compare the published Medicare service mix of Do-Eun Lee, MD with clinicians in the same registry specialty: Endocrinology (CMS).

NAPA, CA · 25 milesEdit location
Within 25 miles · Approximate ZIP-area distance

Approximate straight-line distances between ZIP-area centers; a city search starts from the average of its ZIP centers. Uses the primary reported practice ZIP, not an exact office address or driving distance. Records without matched coordinates are excluded. How distance works

2024 published service data · 8 eligible profiles compared. Similarity describes billing patterns, not quality, outcomes, or suitability for your care.

Yuichiro David Nakai, M.D.

Endocrinology (CMS) · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Injection of drug or substance under skin or into muscle (96372)
69%Service-mix similarity~22.4 milesView profile →

Kelvin Tran

Endocrinology (CMS) · Fairfield, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)
60%Service-mix similarity~10.7 milesView profile →

Beatrice Arlene Brumley

Endocrinology · Internal Medicine (CMS) · Santa Rosa, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)
58%Service-mix similarity~22.4 milesView profile →

David Allen Chappell, M.D.

Endocrinology (CMS) · Petaluma, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (95251)
50%Service-mix similarity~19.6 milesView profile →

Michael Oconnor, MD

Endocrinology (CMS) · Pinole, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
48%Service-mix similarity~24.2 milesView profile →

Teodor Duro, MD

Endocrinology · Internal Medicine (CMS) · Fairfield, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
40%Service-mix similarity~14.1 milesView profile →

Omar Mtaweh Murad, M.D.

Endocrinology (CMS) · Fairfield, CA

Shared published services
3 shared services · view billing descriptions
  • Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)
  • Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)
  • New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)
40%Service-mix similarity~10.7 milesView profile →

Nilma Arshad Malik, MD

Endocrinology · Internal Medicine (CMS) · Novato, CA

Shared published services
2 shared services · view billing descriptions
  • Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)
  • New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)
29%Service-mix similarity~22.7 milesView profile →
How this comparison works

We use the same calendar year of CMS Medicare Physician & Other Practitioners data for both providers. Published non-drug service counts are combined by HCPCS code across places of service. We apply log(1 + count), normalize the vectors, and compare them using cosine similarity.

Candidates share the reference provider’s current NPPES primary taxonomy and match the location you enter. We examine up to 500 candidates in approximate distance order, then show up to 12 with the highest positive similarity within that set. The score is not a percentile, medical recommendation, or prediction. Suppressed services are not estimated. Medicare fee-for-service data does not describe a provider’s entire practice.

Source: CMS Medicare Physician & Other Practitioners - by Provider and Service : 2024-12-01 · Published May 21, 2026.